What question did this study set out to answer?

To derive a closed-form high-frequency approximation for physical-optics scattering integrals and extract edge-diffraction effects for truncated surfaces of revolution viewed at axial incidence.

January 1, 1991Journal of the Optical Society of America A

High-frequency approximations for edge scatter from surfaces of revolution

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Authors

WGWilliam B. GordonWestern University HBH.J. BilowNaval Air Systems Command

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Implication

Mathematical modeling study demonstrates closed-form high-frequency approximations for truncated surfaces of revolution, highlighting improved edge-diffraction predictions for radar backscatter.

Key Points

To derive a closed-form high-frequency approximation for physical-optics scattering integrals and extract edge-diffraction effects for truncated surfaces of revolution viewed at axial incidence.
Derived closed-form high-frequency approximations of the physical-optics (PO) scattering integral for truncated surfaces of revolution under axial incidence.
Extracted the PO edge effect to formulate an analytical high-frequency representation based on the geometrical theory of diffraction (GTD).
Benchmarked backscatter predictions against method-of-moments calculations for paraboloidal geometries and historical theoretical solutions for spherical segments.
The closed-form physical-optics approximation successfully isolated high-frequency edge-diffraction terms from axial surface integrals without requiring numerical integration.
Predicted total radar backscatter showed close qualitative agreement when evaluated against method-of-moments numerical results on paraboloids and Raybin's reference models on spherical segments.

Cite This Study

Gordon et al. (1991) studied this question.

synapsesocial.com/papers/6a70524a660549caf2c4e650 https://doi.org/10.1364/josaa.8.000011

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Implication

Mathematical modeling study demonstrates closed-form high-frequency approximations for truncated surfaces of revolution, highlighting improved edge-diffraction predictions for radar backscatter.

High-frequency approximations for edge scatter from surfaces of revolution

Discussion

Member takes

Implication

Key Points

Cite This Study

High-frequency approximations for edge scatter from surfaces of revolution

Discussion

Member takes

Implication

Key Points

Cite This Study

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